import router, { resetRouter, error404Routers } from './router'
import store from './store'
import { Message } from 'element-ui'
import NProgress from 'nprogress' // progress bar
import 'nprogress/nprogress.css' // progress bar style
import { getToken } from '@/utils/auth' // get token from cookie
import getPageTitle from '@/utils/get-page-title'
import Layout from '@/layout'

NProgress.configure({ showSpinner: false }) // NProgress Configuration

const whiteList = ['/login'] // no redirect whitelist
router.beforeEach((to, from, next) => {
  NProgress.start()
  document.title = getPageTitle(to.meta.title)
  const hasToken = getToken()
  if (hasToken) {
    if (to.path === '/login') {
      next({ path: '/' })
      NProgress.done()
    } else {
      try {
        const hasPermissions = store.getters.name
        if (hasPermissions) {
          next()
        } else {
          // get user info
          store.dispatch('user/getInfo').then(data => {
            store.dispatch('permission/generateRoutes', data).then(permissionRoutes => {
              // resetRouter()
              router.addRoutes(permissionRoutes)
              router.addRoutes([{ path: '*', redirect: '/404', hidden: true }])
              next({ ...to, replace: true })
            })
          })
        }
      } catch (error) {
        // remove token and go to login page to re-login
        store.dispatch('user/resetToken').then(() => {
          Message.error(error || 'Has Error')
          next(`/login?redirect=${to.path}`)
          NProgress.done()
        })
      }
    }
  } else {
    /* has no token*/
    if (whiteList.indexOf(to.path) !== -1) {
      // in the free login whitelist, go directly
      next()
    } else {
      // other pages that do not have permission to access are redirected to the login page.
      next(`/login?redirect=${to.path}`)
      NProgress.done()
    }
  }
})

router.afterEach(() => {
  // finish progress bar
  NProgress.done()
})
